Re-inventing noble liquid detectors -- new techniques for the next generation*

Noble liquid- and noble gas-based detectors have become ubiquitous in low-background physics, and with good reason – but what is that reason, and what more can we do with them?  The answers go far beyond “build a big, clean TPC”.  I will kick off this mini-symposium on noble liquid detectors by reminding us how and why these detectors work (chemistry so simple even a physicist can do it) and reviewing the many signals we can extract from interactions in noble liquids.  I’ll then highlight some of the latest developments in noble liquid detectors, including the many methods and motivations for doping your detector, how to monitor and control the weather inside your TPC (and why), and how to use phase changes to your advantage in a rare event search.